
package com.seekting.study;

public class CheckInit {

    private Button button = new Button();

    private class Button {

        private Button() {
            System.out.println(Thread.currentThread());
        }
    }

    public static void main(String[] args) {
        CheckInit checkInit = new CheckInit();

        new Thread(new Runnable() {

            @Override
            public void run() {
                CheckInit checkInit = new CheckInit();

            }
        }, "a").start();
    }
}
